{
  "cveId": "CVE-2026-34785",
  "url": "https://patchblox.com/security/cve/CVE-2026-34785",
  "summary": "CVE-2026-34785 is fixed in 2 products on 1 platform, first by ruby-rack 3.2.4-1ubuntu1.1, released April 2, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ruby-rack: Rack is a modular Ruby web server interface",
  "description": "Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Static determines whether a request should be served as a static file using a simple string prefix check. When configured with URL prefixes such as \u0022/css\u0022, it matches any request path that begins with that string, including unrelated paths such as \u0022/css-config.env\u0022 or \u0022/css-backup.sql\u0022. As a result, files under the static root whose names merely share the configured prefix may be served unintentionally, leading to information disclosure. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.",
  "published": "2026-04-02T10:16:00Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss": 0.00394,
  "epssPercentile": 0.33882,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rmt-server",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "3.1.0-160000.1.1",
      "fix": "OPENSUSE-SU-2026:21640-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21640-1",
      "released": "2026-08-25T06:34:56Z"
    },
    {
      "platform": "linux",
      "product": "rmt-server",
      "release": "sles 15.6",
      "fixedVersion": "2.27-150500.3.47.1",
      "fix": "SUSE-SU-2026:2487-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-2487-1",
      "released": "2026-06-22T12:08:31Z"
    },
    {
      "platform": "linux",
      "product": "rmt-server",
      "release": "sles 16.0",
      "fixedVersion": "3.1.0-160000.1.1",
      "fix": "SUSE-SU-2026:23321-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23321-1",
      "released": "2026-08-25T06:34:19Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.2.22-0\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2026-34785",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-34785",
      "released": "2026-04-02T17:16:24Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.1.20-0\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-34785",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-34785",
      "released": "2026-04-02T17:16:24Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Debian 14",
      "fixedVersion": "3.2.6-2",
      "fix": "DEBIAN-CVE-2026-34785",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-34785",
      "released": "2026-04-02T17:16:24Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.6.4-4ubuntu0.2\u002Besm10",
      "fix": "ruby-rack 1.6.4-4ubuntu0.2\u002Besm10",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ruby-rack-1.6.4-4ubuntu0.2-esm10",
      "released": "2026-04-30T14:05:58Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2.1.4-5ubuntu1.2\u002Besm3",
      "fix": "ruby-rack 2.1.4-5ubuntu1.2\u002Besm3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-ruby-rack-2.1.4-5ubuntu1.2-esm3",
      "released": "2026-04-30T14:06:06Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "2.2.7-1ubuntu0.7",
      "fix": "ruby-rack 2.2.7-1ubuntu0.7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-ruby-rack-2.2.7-1ubuntu0.7",
      "released": "2026-04-30T14:06:10Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "3.1.16-0.1ubuntu0.3",
      "fix": "ruby-rack 3.1.16-0.1ubuntu0.3",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-ruby-rack-3.1.16-0.1ubuntu0.3",
      "released": "2026-04-30T14:06:15Z"
    },
    {
      "platform": "linux",
      "product": "ruby-rack",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "3.2.4-1ubuntu1.1",
      "fix": "ruby-rack 3.2.4-1ubuntu1.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-ruby-rack-3.2.4-1ubuntu1.1",
      "released": "2026-04-02T11:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}